Using data-excavating method to systematically decompose a complicated syndrome system as essential elements of syndrome relatively limited in quantity and relatively clear in contents.By combination of various essential elements of syndromes

systematical combination of essential elements of syndromes with other traditional syndrome differentiation method and other different corresponding syndrome combination ways

syndrome differentiation method system is no longer a kind of combined plane of simple linear connection of various concrete syndromes

therefore a system of multiple dimensions and multiple steps with combined essential elements of syndrome and corresponding syndromes as core was formed.The System is of non-linear characteristics.